Promise City, IA has a continental climate, with hot summers and cold winters. During the summer months, temperatures typically reach into the mid to upper 80s and in winter they drop into the teens and twenties. Rainfall is plentiful throughout the year, with an average of 34 inches annually. Spring and autumn are generally mild with temperature swings between warm and cold days. Snowfall can occur throughout the year, but is most common during the winter months.
Promise City (zip 52583), Iowa gets 38 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Promise City (zip 52583) averages 24 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 202 sunny days per year in Promise City (zip 52583). The US average is 205 sunny days.
Promise City (zip 52583) gets some kind of precipitation, on average, 104 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 85 degrees
Winter Low: the January low is 13
Rain: averages 38 inches of rain a year
Snow: averages 24 inches of snow a year